pcgv3 supervoxel splitting

Author: akhileshh

pychunkedgraph/graph/attributes.py

@@ -160,6 +160,18 @@ class Hierarchy:
         serializer=serializers.NumPyValue(dtype=basetypes.NODE_ID),
     )
 
+    FormerIdentity = _Attribute(
+        key=b"former_ids",
+        family_id="0",
+        serializer=serializers.NumPyArray(dtype=basetypes.NODE_ID),
+    )
+
+    NewIdentity = _Attribute(
+        key=b"new_ids",
+        family_id="0",
+        serializer=serializers.NumPyArray(dtype=basetypes.NODE_ID),
+    )
+
 
 class GraphMeta:
     key = b"meta"

pychunkedgraph/graph/client/base.py

@@ -122,6 +122,10 @@ def create_node_ids(self, chunk_id):
     def create_node_id(self, chunk_id):
         """Generate a unique ID in the chunk."""
 
+    @abstractmethod
+    def set_max_node_id(self, chunk_id, node_id):
+        """Gets the current maximum node ID in the chunk."""
+
     @abstractmethod
     def get_max_node_id(self, chunk_id):
         """Gets the current maximum node ID in the chunk."""

pychunkedgraph/graph/client/bigtable/client.py

@@ -615,6 +615,17 @@ def create_node_id(
         """Generate a unique node ID in the chunk."""
         return self.create_node_ids(chunk_id, 1, root_chunk=root_chunk)[0]
 
+    def set_max_node_id(
+        self, chunk_id: np.uint64, node_id: np.uint64
+    ) -> basetypes.NODE_ID:
+        """Set max segment ID for a given chunk."""
+        size = int(np.uint64(chunk_id) ^ np.uint64(node_id))
+        key = serialize_uint64(chunk_id, counter=True)
+        column = attributes.Concurrency.Counter
+        row = self._table.append_row(key)
+        row.increment_cell_value(column.family_id, column.key, size)
+        row = row.commit()
+
     def get_max_node_id(
         self, chunk_id: basetypes.CHUNK_ID, root_chunk=False
     ) -> basetypes.NODE_ID:

pychunkedgraph/graph/edits_sv.py

@@ -0,0 +1,54 @@
+"""
+Supervoxel splitting and managing new IDs.
+"""
+
+from typing import Iterable
+
+import numpy as np
+
+from pychunkedgraph.graph import ChunkedGraph
+from pychunkedgraph.graph.utils import basetypes
+from pychunkedgraph.graph.attributes import Hierarchy
+from pychunkedgraph.graph.utils.serializers import serialize_uint64
+
+
+def split_supervoxel(
+    cg: ChunkedGraph, supervoxel_id: basetypes.NODE_ID
+) -> Iterable[basetypes.NODE_ID]:
+    """
+    Lookup coordinates of given supervoxel in segmentation.
+    Split it and update the coordinates with new IDs.
+    Return new IDs.
+    """
+
+
+def copy_parents_and_create_lineage(
+    cg: ChunkedGraph, old_id: basetypes.NODE_ID, new_ids: Iterable[basetypes.NODE_ID]
+) -> list:
+    """
+    Copy parents column from `old_id` to each of `new_ids`.
+      This makes it easy to get old hierarchy with `new_ids` using an older timestamp.
+    Link `old_id` and `new_ids` to create a lineage at supervoxel layer.
+    Returns a list of mutations to be persisted.
+    """
+    result = []
+    parent_cells = cg.client.read_node(old_id, properties=Hierarchy.Parent)
+
+    for new_id in new_ids:
+        val_dict = {
+            Hierarchy.FormerIdentity: np.array([old_id], dtype=basetypes.NODE_ID)
+        }
+        result.append(cg.client.mutate_row(serialize_uint64(new_id), val_dict))
+
+        for cell in parent_cells:
+            result.append(
+                cg.client.mutate_row(
+                    serialize_uint64(new_id),
+                    {Hierarchy.Parent: cell.value},
+                    time_stamp=cell.timestamp,
+                )
+            )
+
+    val_dict = {Hierarchy.NewIdentity: np.array(new_ids, dtype=basetypes.NODE_ID)}
+    result.append(cg.client.mutate_row(serialize_uint64(old_id), val_dict))
+    return result

pychunkedgraph/graph/ocdbt.py

@@ -0,0 +1,60 @@
+import os
+import numpy as np
+import tensorstore as ts
+
+from pychunkedgraph.graph import ChunkedGraph
+
+OCDBT_SEG_COMPRESSION_LEVEL = 22
+
+
+def get_seg_source_and_destination_ocdbt(
+    cg: ChunkedGraph, create: bool = False
+) -> tuple:
+    src_spec = {
+        "driver": "neuroglancer_precomputed",
+        "kvstore": cg.meta.data_source.WATERSHED,
+    }
+    src = ts.open(src_spec).result()
+    schema = src.schema
+
+    ocdbt_path = os.path.join(cg.meta.data_source.WATERSHED, "ocdbt", "base")
+    dst_spec = {
+        "driver": "neuroglancer_precomputed",
+        "kvstore": {
+            "driver": "ocdbt",
+            "base": ocdbt_path,
+            "config": {
+                "compression": {"id": "zstd", "level": OCDBT_SEG_COMPRESSION_LEVEL},
+            },
+        },
+    }
+
+    dst = ts.open(
+        dst_spec,
+        create=create,
+        rank=schema.rank,
+        dtype=schema.dtype,
+        codec=schema.codec,
+        domain=schema.domain,
+        shape=schema.shape,
+        chunk_layout=schema.chunk_layout,
+        dimension_units=schema.dimension_units,
+        delete_existing=create,
+    ).result()
+    return (src, dst)
+
+
+def copy_ws_chunk(cg: ChunkedGraph, coords: list, source, destination):
+    coords = np.array(coords, dtype=int)
+    vx_start = coords * cg.meta.graph_config.CHUNK_SIZE
+    vx_end = vx_start + cg.meta.graph_config.CHUNK_SIZE
+    xE, yE, zE = cg.meta.voxel_bounds[:, 1]
+
+    x0, y0, z0 = vx_start
+    x1, y1, z1 = vx_end
+    x1 = min(x1, xE)
+    y1 = min(y1, yE)
+    z1 = min(z1, zE)
+
+    data = source[x0:x1, y0:y1, z0:z1].read().result()
+    destination[x0:x1, y0:y1, z0:z1].write(data).result()

pychunkedgraph/ingest/cli.py

@@ -23,6 +23,7 @@
 from .simple_tests import run_all
 from .create.parent_layer import add_parent_chunk
 from ..graph.chunkedgraph import ChunkedGraph
+from ..graph.ocdbt import get_seg_source_and_destination_ocdbt
 from ..utils.redis import get_redis_connection, keys as r_keys
 
 group_name = "ingest"
@@ -71,6 +72,7 @@ def ingest_graph(
 
     imanager = IngestionManager(ingest_config, meta)
     enqueue_l2_tasks(imanager, create_atomic_chunk)
+    get_seg_source_and_destination_ocdbt(cg, create=True)
 
 
 @ingest_cli.command("imanager")

pychunkedgraph/ingest/cluster.py

@@ -26,6 +26,7 @@
 from .upgrade.parent_layer import update_chunk as update_parent_chunk
 from ..graph.edges import EDGE_TYPES, Edges, put_edges
 from ..graph import ChunkedGraph, ChunkedGraphMeta
+from ..graph.ocdbt import copy_ws_chunk, get_seg_source_and_destination_ocdbt
 from ..graph.chunks.hierarchy import get_children_chunk_coords
 from ..graph.utils.basetypes import NODE_ID
 from ..io.edges import get_chunk_edges
@@ -127,6 +128,9 @@ def create_atomic_chunk(coords: Sequence[int]):
         logging.debug(f"{k}: {len(v)}")
     for k, v in chunk_edges_active.items():
         logging.debug(f"active_{k}: {len(v)}")
+
+    src, dst = get_seg_source_and_destination_ocdbt(imanager.cg)
+    copy_ws_chunk(imanager.cg, coords, src, dst)
     _post_task_completion(imanager, 2, coords)
 
 

pychunkedgraph/ingest/create/atomic_layer.py

@@ -35,7 +35,10 @@ def add_atomic_chunk(
         return
 
     chunk_ids = cg.get_chunk_ids_from_node_ids(chunk_node_ids)
-    assert len(np.unique(chunk_ids)) == 1
+    assert len(np.unique(chunk_ids)) == 1, np.unique(chunk_ids)
+
+    max_node_id = np.max(chunk_node_ids)
+    cg.id_client.set_max_node_id(chunk_ids[0], max_node_id)
 
     graph, _, _, unique_ids = build_gt_graph(chunk_edge_ids, make_directed=True)
     ccs = connected_components(graph)

pychunkedgraph/repair/fake_edges.py

@@ -9,9 +9,9 @@
 from os import environ
 from typing import Optional
 
-environ["BIGTABLE_PROJECT"] = "<>"
-environ["BIGTABLE_INSTANCE"] = "<>"
-environ["GOOGLE_APPLICATION_CREDENTIALS"] = "<path>"
+# environ["BIGTABLE_PROJECT"] = "<>"
+# environ["BIGTABLE_INSTANCE"] = "<>"
+# environ["GOOGLE_APPLICATION_CREDENTIALS"] = "<path>"
 
 from pychunkedgraph.graph import edits
 from pychunkedgraph.graph import ChunkedGraph

pychunkedgraph/tests/test_uncategorized.py

@@ -107,6 +107,8 @@ def test_build_single_node(self, gen_graph):
         cg = gen_graph(n_layers=2)
         # Add Chunk A
         create_chunk(cg, vertices=[to_label(cg, 1, 0, 0, 0, 0)])
+        chunk_id = to_label(cg, 1, 0, 0, 0, 0)
+        assert cg.id_client.get_max_node_id(chunk_id) == chunk_id
 
         res = cg.client._table.read_rows()
         res.consume_all()
@@ -130,7 +132,7 @@ def test_build_single_node(self, gen_graph):
         assert len(children) == 1 and children[0] == to_label(cg, 1, 0, 0, 0, 0)
         # Make sure there are not any more entries in the table
         # include counters, meta and version rows
-        assert len(res.rows) == 1 + 1 + 1 + 1 + 1
+        assert len(res.rows) == 1 + 1 + 1 + 1 + 1 + 1
 
     @pytest.mark.timeout(30)
     def test_build_single_edge(self, gen_graph):
@@ -151,6 +153,8 @@ def test_build_single_edge(self, gen_graph):
             vertices=[to_label(cg, 1, 0, 0, 0, 0), to_label(cg, 1, 0, 0, 0, 1)],
             edges=[(to_label(cg, 1, 0, 0, 0, 0), to_label(cg, 1, 0, 0, 0, 1), 0.5)],
         )
+        chunk_id = to_label(cg, 1, 0, 0, 0, 0)
+        assert cg.id_client.get_max_node_id(chunk_id) == to_label(cg, 1, 0, 0, 0, 1)
 
         res = cg.client._table.read_rows()
         res.consume_all()
@@ -183,7 +187,7 @@ def test_build_single_edge(self, gen_graph):
 
         # Make sure there are not any more entries in the table
         # include counters, meta and version rows
-        assert len(res.rows) == 2 + 1 + 1 + 1 + 1
+        assert len(res.rows) == 2 + 1 + 1 + 1 + 1 + 1
 
     @pytest.mark.timeout(30)
     def test_build_single_across_edge(self, gen_graph):
@@ -285,7 +289,7 @@ def test_build_single_across_edge(self, gen_graph):
 
         # Make sure there are not any more entries in the table
         # include counters, meta and version rows
-        assert len(res.rows) == 2 + 2 + 1 + 3 + 1 + 1
+        assert len(res.rows) == 2 + 2 + 1 + 3 + 1 + 1 + 2
 
     @pytest.mark.timeout(30)
     def test_build_single_edge_and_single_across_edge(self, gen_graph):
@@ -311,13 +315,19 @@ def test_build_single_edge_and_single_across_edge(self, gen_graph):
             ],
         )
 
+        chunk_id = to_label(cg, 1, 0, 0, 0, 0)
+        assert cg.id_client.get_max_node_id(chunk_id) == to_label(cg, 1, 0, 0, 0, 1)
+
         # Chunk B
         create_chunk(
             cg,
             vertices=[to_label(cg, 1, 1, 0, 0, 0)],
             edges=[(to_label(cg, 1, 1, 0, 0, 0), to_label(cg, 1, 0, 0, 0, 0), inf)],
         )
 
+        chunk_id = to_label(cg, 1, 1, 0, 0, 0)
+        assert cg.id_client.get_max_node_id(chunk_id) == to_label(cg, 1, 1, 0, 0, 0)
+
         add_parent_chunk(cg, 3, np.array([0, 0, 0]), n_threads=1)
         res = cg.client._table.read_rows()
         res.consume_all()
@@ -393,7 +403,7 @@ def test_build_single_edge_and_single_across_edge(self, gen_graph):
 
         # Make sure there are not any more entries in the table
         # include counters, meta and version rows
-        assert len(res.rows) == 3 + 2 + 1 + 3 + 1 + 1
+        assert len(res.rows) == 3 + 2 + 1 + 3 + 1 + 1 + 2
 
     @pytest.mark.timeout(120)
     def test_build_big_graph(self, gen_graph):